Rork, it's true that you'd have to calculate what the
shutter speed of the spinning disk would be, and then
compensate with the aperture setting for good exposure,
but the advantage over a high-speed strobe light is that
this thing can be used in daylight or other, more pleasent
looking lighting, than single-source flash light.

Slynky, you'd never catch me doing something like
that. Not without a set of tassled pasties!